Electronic Spark Control (Pickup & Rodeo 3.1L, Trooper 2.8L)
To test ESC system, see DIAGNOSTIC CHARTS, CHART C-5, ESC SYSTEM. ESC module is located on right side fenderwell and contains a 5-pin connector.
NOTE:
If a problem develops with ESC, ECM will set Code 43. For additional testing procedures, see appropriate G - EFI TESTS W/ CODES article in the ENGINE PERFORMANCE Section.